0409007v2

related topics
{time, decoherence, evolution}
{equation, function, exp}
{state, phys, rev}
{energy, gaussian, time}
{temperature, thermal, energy}
{time, wave, function}
{phase, path, phys}
{error, code, errors}

Exact quantum master equation via the calculus on path integrals

Rui-Xue Xu, Ping Cui, Xin-Qi Li, Yan Mo, YiJing Yan

abstract: An exact quantum master equation formalism is constructed for the efficient evaluation of quantum non-Markovian dissipation beyond the weak system-bath interaction regime in the presence of time-dependent external field. A novel truncation scheme is further proposed and compared with other approaches to close the resulting hierarchically coupled equations of motion. The interplay between system-bath interaction strength, non-Markovian property, and required level of hierarchy is also demonstrated with the aid of simple spin-boson systems.

oai_identifier:
oai:arXiv.org:quant-ph/0409007
categories:
quant-ph
comments:
4 pages, 2 figures
doi:
10.1063/1.1850899
arxiv_id:
quant-ph/0409007
created:
2004-09-01
updated:
2004-10-12

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